No. 2305. ON SOME FOREST LEPIDOPTERA—HEINRICH. 63 



three long, stout prongs, the two lower ones longer than the upper one. 

 Alar expanse: 17-20 mm. 



Habitat. — Waldo Canyon, Colorado [type locality] (J. H, Pollock) 

 Monument Park Colorado (G. G. Hedgcock), and Ashland, Oregon 

 (P. D. Sergent). 



Food Plant. — Razoumojshya cryptopoda. 



A good series of moths reared under Hopk. U. S. Nos, 12187, 

 12187(:Z, 12515a2, and 13942g from larvae feeding on the mistletoe on 

 Pinus ponderosa and Pseudotsuga taxifolia. Moths issued during 

 April, June, and August. 



Type.—C^t. No. 21806, U.S.N.M. 



A large slate-colored species in general appearance near trilineella 

 Ciiambers, easily identified by its peculiar aedoeagus. In the genus 

 Gelechia this organ is most elaborately developed and offers very 

 good characters for the separation and identification of species. 



The larva is sordid white with a faint indication of pink along the 

 dorsum. Legs yellow with chitinized area of coxal lobes smoky fuscous ; 

 abdominal crochets 30-32, yellowish brown (unevenly biordinal and 

 in a complete circle) ; thoracic shield pale yellow or (in some speci- 

 mens) brownish yellow, narrowly bordered along caudal margin 

 with smoky fuscous, median line straight, sharp, narrow, white; 

 anal sliield pale yellow or brownish yellow with a rather large, trian- 

 gular, smoky fuscous patch at each anterior lateral angle; tubercles 

 rather broadly chitmized, smoky fuscous; body hairs yellowish white; 

 spiracles brown. Head yellow, pale in some specimens, somewhat 

 darker in others; posterior margins and endoskeletal ridges brown; 

 mandibles amber brown, their fossae almost black; ocellar pigment 

 nearly continuous, contained well within the ring of the ocelli and 

 easily distinguished from the white lenses. Length of full grown 

 larvae 15 mm.; 1.5 mm. wide at mesothorax. 



GELECHIA NEGUNDELLA, new species. 



Plate 3, figs. 17-18. 



Antennae light ochreous fuscous, dusted with blackish fuscous; 

 basal joint covered all but the tip by the darker scaling; extremities 

 of all joints narrowly banded with black. Palpi grayish ochreous on 

 inner and upper surfaces; blackish fuscous beneath. Face, head, 

 and thorax light ochreous fuscous; a few blackish fuscous scales on 

 the sides of the face and a rather heavy dusting of similar scales on 

 the thorax. Fore wings dull ochreous fuscous spotted with black; 

 a smaU black sub-costal dot at base of wing; from basial third of 

 costa a small black dash; below and bej^ond this and occupying about 

 the middle of the cell a broad ill-defined patch of blackish scales; on 

 middle of costa a more or less obscure shading of black scales; just 

 before apical thud of costa a black dash, and below it, extending ta 



